Mortise butt hinge marker



May 13, 1952 HNNEMAN 2,596,542

MORTISE BUTT HINGE MARKER Filed Sept. 29, 1948 Fjgw AT TU/Q/VE YPatented May 13, 1952 UNITED STATES PATENT OFFICE MORTISE BUTT HINGEMARKER Tyko K. Finneman, Portland, Greg. Application September 29, 1948,Serial No. 51,785

1 Claim. 1

This invention relates generally to carpenters tools and particularly toa mortise butt hinge marker.

The main object of this invention is to provide an inexpensive andefiicient butt hinge marker whereby the door and jamb may be accuratelymarked, preparatory to forming the hinge receiving portion.

The second object is to construct a tool of the class described whichwill be light in weight and which, by reason of its construction, canonly mark the woodwork in an accurate manner.

These and other objects are accomplished in the manner set forth in. thefollowing specification as illustrated in the accompanying drawing, inwhich Fig. 1 is a plan of the device.

Fig. 2 is a side elevation.

Fig. 3 is an end elevation.

Fig. 4 is a fragmentary view showing the mark left by the device on thedoor and jamb.

Fig. 5 is a section along the line 5-5 in Fig.

Fig. 6 is a view taken along the line 6-6 in Fig. 5.

Like numbers of reference refer to the same or similar parts throughoutthe several views.

Referring in detail to the drawing, there is shown a common form of doorI!) which is to be hinged to the jamb I I In order to make the door hangproperly and the butt portions engage each other in proper alignment, itis necessary that the butt portions be accurately mounted on the door I0 and the jamb I I. In order to accomplish this purpose, I have provideda tool consisting of a cylindrical handle I2 in the end of which isplaced a flat blade I3 having a chisel point I4 mounted in the slot I5.

Below the blade I 3 and normal thereto is a vertical alignment blade I6Whose edge I1 is normal to the axis of the cylindrical handle I2. Theend l8 of the blade I6 is somewhat below the bottom edge of the memberI2.

The end IQ of the handle I 2 fered as it is intended to be mer 20.

The operation of the device is as follows: Assuming that the door It isproperly positioned within its opening and the position of the hinges isdetermined, it is only necessary to insert the blade I6 into the crack2| between the members I U and II, bringing the upper edge 22 of thechisel point I l into register with the hinge location mark. The end Itis struck with the hammer fill, leaving the two directly opposite chiselmarks 23 and 24 in the members I0 and II.

The ordinary try-square 25 is then used to mark the hinge boundaries bymeans of a knife or scriber (not shown). Obviously, this can be done foreach hinge and at both ends of the hinge, providing an extremelyaccurate layout for the hinge cut-out.

The blade It is pressed into the lower portion of the slot 26 which, ifconvenient, extends across the body I2.

I claim:

A device of the class described, comprising a cylindrical handle havingprojecting from one end thereof a fiat pointed chisel blade and alsohaving projecting therefrom an alignment blade having one chisel edgeprojecting beyond the point of said pointed blade and having theoutermost portion of said alignment blade extending laterally beyond thesurface of said handle memher and normal to said pointed blade.

TYKO K. FINNEMAN.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS is preferably chamstruck by a ham- Number NameDate 1,114,736 Dick Oct. 27, 1914 1,629,053 Schrader May 17, 1927

